This mini cannon by pocket artillery actually works! If you looking for something cool for your desk you need to get one of these bad boys. The mini cannon ($29) is made from precision machined stainless steel and uses .177″ BB’s with a fireworks fuse. All of the supplies needed are easily accessible online. Check out this [video_lightbox_youtube video_id=0tiTdwNILl4 width=640 height=480 anchor=video] of the canon destroying a perfectly good bottle of beer.